2 * This file is part of the libsigrok project.
4 * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "libsigrok.h"
25 #include "libsigrok-internal.h"
27 /* Message logging helpers with subsystem-specific prefix string. */
28 #define LOG_PREFIX "output/analog: "
29 #define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
30 #define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
31 #define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
32 #define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
33 #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
34 #define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
37 int num_enabled_probes;
41 static int init(struct sr_output *o)
44 struct sr_probe *probe;
47 sr_spew("Initializing output module.");
52 if (!(ctx = g_try_malloc0(sizeof(struct context)))) {
53 sr_err("Output module context malloc failed.");
58 /* Get the number of probes and their names. */
59 ctx->probelist = g_ptr_array_new();
60 for (l = o->sdi->probes; l; l = l->next) {
62 if (!probe || !probe->enabled)
64 g_ptr_array_add(ctx->probelist, probe->name);
65 ctx->num_enabled_probes++;
71 static void si_printf(float value, GString *out, char *unitstr)
80 if (v < 1e-12 || v > 1e+12)
81 g_string_append_printf(out, "%f %s", value, unitstr);
83 g_string_append_printf(out, "%f G%s", value / 1e+9, unitstr);
85 g_string_append_printf(out, "%f M%s", value / 1e+6, unitstr);
87 g_string_append_printf(out, "%f k%s", value / 1e+3, unitstr);
89 g_string_append_printf(out, "%f n%s", value * 1e+9, unitstr);
91 g_string_append_printf(out, "%f u%s", value * 1e+6, unitstr);
93 g_string_append_printf(out, "%f m%s", value * 1e+3, unitstr);
95 g_string_append_printf(out, "%f %s", value, unitstr);
99 static void fancyprint(int unit, int mqflags, float value, GString *out)
103 si_printf(value, out, "V");
106 si_printf(value, out, "A");
109 si_printf(value, out, "");
110 g_string_append_unichar(out, 0x2126);
113 si_printf(value, out, "F");
116 si_printf(value, out, "K");
118 case SR_UNIT_CELSIUS:
119 si_printf(value, out, "");
120 g_string_append_unichar(out, 0x00b0);
121 g_string_append_c(out, 'C');
123 case SR_UNIT_FAHRENHEIT:
124 si_printf(value, out, "");
125 g_string_append_unichar(out, 0x00b0);
126 g_string_append_c(out, 'F');
129 si_printf(value, out, "Hz");
131 case SR_UNIT_PERCENTAGE:
132 g_string_append_printf(out, "%f%%", value);
134 case SR_UNIT_BOOLEAN:
136 g_string_append_printf(out, "TRUE");
138 g_string_append_printf(out, "FALSE");
141 si_printf(value, out, "s");
143 case SR_UNIT_SIEMENS:
144 si_printf(value, out, "S");
146 case SR_UNIT_DECIBEL_MW:
147 si_printf(value, out, "dBu");
149 case SR_UNIT_DECIBEL_VOLT:
150 si_printf(value, out, "dBV");
152 case SR_UNIT_DECIBEL_SPL:
153 if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_A)
154 si_printf(value, out, "dB(A)");
155 else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_C)
156 si_printf(value, out, "dB(C)");
157 else if (mqflags & SR_MQFLAG_SPL_FREQ_WEIGHT_Z)
158 si_printf(value, out, "dB(Z)");
160 /* No frequency weighting, or non-standard "flat" */
161 si_printf(value, out, "dB(SPL)");
162 if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_S)
163 g_string_append(out, " S");
164 else if (mqflags & SR_MQFLAG_SPL_TIME_WEIGHT_F)
165 g_string_append(out, " F");
166 if (mqflags & SR_MQFLAG_SPL_LAT)
167 g_string_append(out, " LAT");
168 else if (mqflags & SR_MQFLAG_SPL_PCT_OVER_ALARM)
169 /* Not a standard function for SLMs, so this is
170 * a made-up notation. */
171 g_string_append(out, " %oA");
173 case SR_UNIT_CONCENTRATION:
174 g_string_append_printf(out, "%f ppm", value * 1000000);
176 case SR_UNIT_REVOLUTIONS_PER_MINUTE:
177 si_printf(value, out, "RPM");
179 case SR_UNIT_VOLT_AMPERE:
180 si_printf(value, out, "VA");
183 si_printf(value, out, "W");
185 case SR_UNIT_WATT_HOUR:
186 si_printf(value, out, "Wh");
189 si_printf(value, out, "");
193 if (mqflags & SR_MQFLAG_AC)
194 g_string_append_printf(out, " AC");
195 if (mqflags & SR_MQFLAG_DC)
196 g_string_append_printf(out, " DC");
197 if (mqflags & SR_MQFLAG_RMS)
198 g_string_append_printf(out, " RMS");
199 if (mqflags & SR_MQFLAG_DIODE)
200 g_string_append_printf(out, " DIODE");
201 if (mqflags & SR_MQFLAG_HOLD)
202 g_string_append_printf(out, " HOLD");
203 if (mqflags & SR_MQFLAG_MAX)
204 g_string_append_printf(out, " MAX");
205 if (mqflags & SR_MQFLAG_MIN)
206 g_string_append_printf(out, " MIN");
207 if (mqflags & SR_MQFLAG_AUTORANGE)
208 g_string_append_printf(out, " AUTO");
209 if (mqflags & SR_MQFLAG_RELATIVE)
210 g_string_append_printf(out, " REL");
211 if (mqflags & SR_MQFLAG_AVG)
212 g_string_append_printf(out, " AVG");
213 g_string_append_c(out, '\n');
216 static int receive(struct sr_output *o, const struct sr_dev_inst *sdi,
217 const struct sr_datafeed_packet *packet, GString **out)
219 const struct sr_datafeed_analog *analog;
220 struct sr_probe *probe;
231 switch (packet->type) {
232 case SR_DF_FRAME_BEGIN:
233 *out = g_string_new("FRAME-BEGIN\n");
235 case SR_DF_FRAME_END:
236 *out = g_string_new("FRAME-END\n");
239 analog = packet->payload;
240 fdata = (const float *)analog->data;
241 *out = g_string_sized_new(512);
242 for (i = 0; i < analog->num_samples; i++) {
243 for (l = analog->probes, p = 0; l; l = l->next, p++) {
245 g_string_append_printf(*out, "%s: ", probe->name);
246 fancyprint(analog->unit, analog->mqflags,
256 static int cleanup(struct sr_output *o)
264 g_ptr_array_free(ctx->probelist, 1);
271 SR_PRIV struct sr_output_format output_analog = {
273 .description = "Analog data",
274 .df_type = SR_DF_ANALOG,